Jonathan Kelfer has spent the last 7 years building trading systems and market infrastructure. Most recently, Jonathan worked at Google leading the team responsible for integrating the Admeld technology stack into Google’s AdX advertising exchange post Google’s acquisition of Admeld. Prior to Google, Jonathan was an early engineering hire at Admeld, leading the team responsible for architecting Admeld’s core ad server and real-time bidding exchange. Previously, Jonathan worked at Bloomberg and Bear Stearns, architecting exchange infrastructure and algo for high frequency trading systems.

Jonathan holds a B.A. and M.S. in computer science from New York University.